Serving tray



FIG. 1 is a top perspective view of a serving tray, showing my new design.

FIG. 2 is a bottom perspective view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a right side view;

FIG. 6 is a left side view;

FIG. 7 is a top plan view;

FIG. 8 is a sectional view; and,

FIG. 9 is a bottom plan view.

All portions shown in broken lines are environmental and illustrative only, and form no part of the claimed design. 

The ornamental design for a serving tray, as shown and described. 